Cutter-bar



(No Model.)

C', B. FRYE.

y GUTTER BAR. 110,604,311. h Patented May 17,1898.

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UNITED STATES PATENT OFFICE.

CHARLES E. FRYE, OF WILTON, NEr HAMPSHIRE.

CUTTER-BAR.

SPECIFICATION forming part of Letters Patent No. 604,311, dated May 17, 1898.

Application filed. August 20, 1897.

Be it known that I, CHARLES E. FRYE, of Wilton, in the, county of VHillsborough and State of New Hampshire, have invented a new and useful Improvement in Cutter-Bars, of which the following is a full, clear, and exact description.

The object of the invention is to so construct a cutter-bar for reapers and mowers that each knife will be contained in an independent pocket and whereby all the knives or any one of themmay be expeditiously and conveniently removed. -f

'A further object ofthe invention is to provide a means whereby a single cap will lock all the knives in position, thus exposing all the knives when said cap is removed.

A further object of the invention is to coustruct the seats for the knives in a simple yet durable manner and also to provide the knives with shanks peculiarly adapted to the improved cutter-bar.

The invention consists in the novel construction and combination of the several parts, as will be hereinafter fully set forth, and pointed out in the claims.

Reference is to be had to the accompanying drawings, formingapart of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure lis a perspective view of a cutter- Y bar of short length. Fig. 2 is a perspective view of the said cutter-bar with the cap removed. Fig. 3 is a longitudinal section taken on the line 3 3 of Fig. 1. Fig. 4 is a plan view of the cutter-barwith the cap removed. Fig. 5 is a bottom plan view of the cap. Fig. 6 is a transverse section on the line 6 6 of Fig. 3, and Fig. 7 is a plan view of one of the knives.

The cutter-bar A is provided upon its upper face at intervals with blocks or projections B. Between the blocks Vor projections spaces C are formed, which may be termed pockets or chambers. Each projection or block B is longitudinally secured upon the cutter-bar, and each intermediate block B isl provided at its inner end, or the end facing the inner extremity of the cutter-bar, with a transverse recess 10, made in that portion of the block which is adjacent tothe bar, forming an inwardlyextending and horizontal lip 11. The inner portion of each block B is Serial No. 648,941. (No model.)

wider than the cutter-bar,- while VYthe outer portion 13, or that portion which faces the outer end of the cutter-bar, is of about the same Width as the cutter-bar, and preferably the forward side faces of the sections 13 of the blocks do not extend to the forward edge of the cutter-bar, thereby forming a slight ledge.

In the front and in the rear face of each of the blocks or extensions B at their Wider portions 12 a longitudinal recess 14 is made adjacent to the cutter-bar, as shown in Figs. 2, 4, and 6. Each bladeD comprises abody 15, which is of the usual triangular shape, being provided with beveled side edges and a T- shank 16, the extended portions of the T being separated from the body of the blade or knife by recesses 17, as shown in Fig. 7. In connection with the cutter-bar and its blades or knives a cap E is employed, adapted to cover all the blocks B and the shank portions of the knives or blades.

In the under face of the cap E, as shown in Fig. 5, chambers 18 are formed, corresponding in number to the number of blocks B, and inthe inner end Wall of each of said' chambers` a recess 19 is produced. The blocks B and likewise the caps may be made of one or anurnber of pieces of metal, as in practice may be found most desirable.

In assembling the parts of the cutter-bar the shank portions of the blades are entered at one side into the recesses 10 of the blocks B, and said shanks'at the opposite side are pressed downward until the recess 17 at that side neatly receives the reduced portion 16 of the block opposite the one having the recess 10 therein. In this manner the extended p0rtion of the T-shank of the blade will engage with the rear faces of opposing blocks B,while the rear end of the body of the blade will engage with the forward faces of the said blocks, and the side of the blade which entersa re.- cessed portion 10 of a block B will also enter the side cuts or recesses 14, and the blades can be removed only by drawing them upward, first at the sides that engage with the plain surfaces of the said blocks. The cap is now placed in position over the cutter-bar, the chambers 18 receiving the blocks B. The cap is then slid outward or toward the outer end of the cutter-bar until the lips 11 of the ICO blocks B have entered the end recesses 19 in the cap-chambers 18. The cap is then forced to its locking position, which will hold all of the blades or knives D in place, preferably by means of a set-screw 20, which is passed through a head B', formed at the inner end of the cutter-bar. I

The pitman, by means of which the cutterbar is operated, is preferably passed over a polygonal or square block 21, which is pivoted on a headed bolt 22, entered into the head B. When the pitman is to be connected with the block 21, the cutter-bar is raised, and after the connection between the pitman and cutter-bar is effected the cutter-bar is dropped to its normal position, and the pitman cannot become detached and Will operate the cutter-bar with the least possible amount of friction.

Having thus described my invention, I claim as new and desire to secure by Letters Patentjections being provided with a lip and an undercut longitudinal recess in its front and rear faces, the outer end of each of the said projections being of reduced width, knives or blades having T-shanks, the shank portions being arranged to enter spaces between opposing blocks, and the heads of the shanks 2. A cutter-bar provided with a series of projections or blocks upon its upper face, the

said projections being spaced apart a predetermined distance, one end of each of the projections or blocks being provided in its sides with undercut recesses, a knife or blade .secured in each of the spaces between the blocks, a portion of the knife being arranged to engage the said side recesses, and a cap arranged for locking engagement with all of the projections or blocks, substantially as described.

3. The combination with a cutter-bar pro-1 vided with a series of blocks 0r projections upon its upper face, one end of each block being provided with Va lip and having undercut recesses in its front and rear faces, and knives or blades secured in the spaces between the blocks and having portions arranged to engage the recesses in the said blocks, of a cap provided with chambers adapted to receive the blocks of the cutter-bar, each chamber having an end recess to receive the lips of said blocks, the cap being adapted for end movement, and a locking device for the said cap, substantially as described.

4E. The combination, with a cutter-bar provided with a series of blocks or projections upon its upper face, one end of each block being wider than its opposite end, the wider end of each block being provided with a lip 1. A cutter-bar provided with projections E upon its upper face at predetermined intervals apart, the inner end of each of the proand its sides with undercut recesses, of blades or knives provided with T-shanks, the shanks being adapted to enter the spaces between opposing blocks and likewise to enter the side recesses of the blocks 'and that portion beneath the lips of the blocks, a cap provided with chambers adapted to receive the blocks of the cutter-bar, each chamber being provided with an end recess to receive the lips of said blocks, and a locking device whereby the cap may be held locked upon the said bar, for the purpose specified.

5. The combination with a cutter-bar provided with a head at its inner end, of a pin secured in the said head and having an enlarged outer end, and a polygonal block loosely mounted on the pin between the enlarged end of the pin and the head of the cutter-bar, the polygonal block being adapted to receive a driving-pitman, substantially as described.

CHARLES E. FRYE.

Witnesses:

BERTHA M. FRYE, HARVEY W. FRYE. 

